EP 3411633 B1 20211229 - WATER SYSTEMS
Title (en)
WATER SYSTEMS
Title (de)
WASSERSYSTEME
Title (fr)
SYSTÈMES D'EAU
Publication
Application
Priority
- GB 201601848 A 20160202
- EP 2017052231 W 20170202
Abstract (en)
[origin: WO2017134151A1] A circulating hot water system has a hot water flow circuit defined by pipework leading out from and back to an in-line heater (20), and including a pump (8) to drive circulation of the hot water. Each of multiple user points (4) has an outflow branch conduit (141) and a return flow branch conduit (142) with a common wall for heat exchange, as does the main flow circuit: the outflow conduit surrounds the return conduit. Water is fed into the system from a pressurised cold water supply main (100) through a check valve (110). Sensors are used to monitor water temperatures and flow conditions around the system. A programmed control processor (7) can control heating and pumping rates in various regimes, e.g. to maintain system temperature above a predetermined threshold. An isolation valve adapted for concentric double pipes is also described.
IPC 8 full level
F24D 17/00 (2006.01); F24D 19/10 (2006.01)
CPC (source: EP GB US)
E03B 7/045 (2013.01 - US); E03B 7/12 (2013.01 - US); F16K 5/0605 (2013.01 - GB); F16K 11/0856 (2013.01 - US); F16K 11/0876 (2013.01 - US); F16L 9/18 (2013.01 - US); F16L 9/19 (2013.01 - US); F16L 39/005 (2013.01 - GB); F16L 55/1018 (2013.01 - GB); F24D 17/0084 (2013.01 - EP GB US); F24D 19/1051 (2013.01 - EP GB US); F24H 15/14 (2022.01 - EP GB US); F24H 15/215 (2022.01 - EP GB US); F24H 15/305 (2022.01 - EP GB US); F24D 2220/0207 (2013.01 - EP US); F24D 2220/0264 (2013.01 - EP US); F24H 15/184 (2022.01 - EP GB US); F24H 15/238 (2022.01 - EP GB US); Y10T 137/85954 (2015.04 - US); Y10T 137/87161 (2015.04 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2017134151 A1 20170810; AU 2017214260 A1 20180906; AU 2017214260 B2 20220825; EP 3411633 A1 20181212; EP 3411633 B1 20211229; GB 201601848 D0 20160316; GB 201701704 D0 20170322; GB 201916227 D0 20191225; GB 2552043 A 20180110; GB 2552043 B 20191225; GB 2575942 A 20200129; GB 2575942 B 20200715; HK 1249571 A1 20181102; US 10900669 B2 20210126; US 2019041067 A1 20190207
DOCDB simple family (application)
EP 2017052231 W 20170202; AU 2017214260 A 20170202; EP 17702865 A 20170202; GB 201601848 A 20160202; GB 201701704 A 20170202; GB 201916227 A 20170202; HK 18108883 A 20180709; US 201716074591 A 20170202